Window construction



Sept; 15, 1942. H. .N. RENTON 2,295,639

' WINDOW CONSTRUCTION Filed June 1; 1940 s Sheets-Sheet 1 INVENTOR; 7 7121117}; N Renfon,

ATTORNEYS.

WITNESS I H n HMI IHN I IH IQH IWI I IINA IHHHHI I I VW IN H N m g m g H M W S m m g C hW V -L Wm SSH mm m \W m r m W\ m n a. hr- R] i Q d\ ma r w an? L Q INHQNRN 5H HQ... -HmvNLH wimw P 1942- H. N RENTON 2,295,689

W INDOW CONSTRUCTION Filed June 1, 1940 8 Sheets-Sheet 2- JAE FIG. 3

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BY W

ATTORNEYS.

Sept. 15, 1942.

H. N. RENTON WINDOW CONSTRUCTION Filed June 1, 1940 8 Sheets-Sheet 3 INVENTOR;

ATTORNEYS.

V. B i

Sept. 15, 1942. H; N. RENTON ,5 9

WINDOW CONSTRUCTION v Filed June 1, 1940 8 Sheets-Sheet 4 Tn: muimaif- I INVENTOR; 7122113 73C Kenton ATTORNEYS.

p 1942- H. N. RENTON 2,295,689

WINDOW CONSTRUCTION Filed June 1, 1940 a Sheets-Sheet 5 WITNESSES:

' INVENTOR; ifianry N Benton,

I '1 BY M ,7 A'fTORNEYS.

8 m m n 5 m MR 9 w V. 2 S N 2 a 1.

BY WW ATTORNEYS.

H. N. RENTON WINDOW CONSTRUCTION Flled June 1 1940 25 @WITNESSES: QM

Sept. 15, 1942.

Sept. 15, 1942 H. N. RENTON W INDOW CONSTRUCTION 8 Sheets-Sheet '7 Filed June 1, 1940 WITNESS" INVENTOR: 572212}; N Rnfon,

ORWEY Sept. 1942- H. N. RENTON 2,295,689

WINDOW CONSTRUCTION Filed June 1, 1940 8 She -etS- Sheet a FICi 20 1;

FICt 21 am 547 19M; r. 91 2 1 190a 5.5 J WITNESSES; INVENTOR:

M fiznry NRenion,

BY M M ATTORNEYS.

Psamase us, 1942 WINDOW CONSTRUCTION Henry N. Benton, Wynoote, Pa, usignor to The American Pulley Oompannlfhiladelphia, Pa.,

a corporation of Penny Application June 1, 1940, saw No. 338L416 8 Claims. (Cl. 189-72) This invention relates to window construction, and has reference more particularly to metallic windows of the sliding sash type.

Amongst the objects of my invention are to make it possible to fabricate such windows economically and expeditiously; and. to provide for l Another aim of my invention is to attain the A above advantages in a window in which the sash suspension and balancing means are incorporated with the sashes so as to be removable with the latter from the window frame.

Another object of my invention is to make pro-- visions whereby the lower sashes may be displaced inwardly for the purpose of providing draftless ventilation.

Another object of my invention is toprovide for the incorporation in the window, of auidliary mounting means which will allow the ready application or removal of interchangeably usable auxiliary storm sashes or screen sashes.

Another object of my invention is to provide for easyremoval and replacement of the panes of the storm sashes and the wire mesh of the screen sashes when necessary.

Another object of my invention is to provide for the effective sealing of the main and auxiliary sashes relative to each other and the window frame and at the same time insure against binding or sticking of the relatively moving contacting surfaces of said sashes and frame.

How the foregoing and other objects may be readily realized in practice will appear from the following detailed description of the attached drawings, whereof Fig. 1 shows, in elevation, the in-side window conveniently embodying my invention.

Fig. 2 shows the out-side elevation of the window with the storm sashes in place.

Fig. 3 is a vertical sectional view drawn to a larger scale and taken as indicated by the angled arrows IIIIII in Figs. 1 and 2.

Fig. 4 is a horizontal section of the window taken as indicated by the angled arrows IV -IV in Figs. 1 and 2.

Fig. 5 is a fragmentary detail sectional view taken as indicated by the angled arrows V-V in Fig. 4.

taken as indicated by the angled arrows VI-VI in Fig. 5.

Fig. 'l is a view like Fig. 5 with the lower sash of the window raised.

Fig. 8 is a fragmentary sectional view taken as indicated by the angled arrows VIII-VIII in Fig. 7.

Figs. 9 and 10 are fragmentary detail views taken as indicated by the angled arrows IX IX and XX in Fig. i.

Figs. 11 and 12 are perspective views of keeper elements respectively associated with the lower and upper sashes of the-window.

Fig. 13 is a fragmentary view corresponding to Fig. 4 but with the lower sash in elevation.

Fig. 14 is a view like Fig. 13 with a lower sash made ready for displacement or withdrawal fro the window frame. i

Fig. 15 is a fragmentary view partly in elevation and partly in section showing one of the steps in the preparation for the displacement or removal of the lower sash.

Fig. 16 is a vertical section corresponding to Fig. 3 showing the lower sash withdrawn from the window frame and arranged for draftless ventilation.

Fig. 17 is a fragmentary view corresponding to i Fig. 16 and drawn to a larger scale.

Fig. 18 is a fragmentary view partly in front elevation and partly in section showing the means provided for locking the auxiliary or bottom storm sashes. I

Fig. 19 is a view in broken out perspective of a supplemental frame jamb element forming a part of my improved window structure.

Fig. 20 is a view corresponding to Fig. 3 show- I ing screen sashes substituted for the storm sashes sponding to Fig.4 and showing a modified detail.

As herein illustrated, my improved window is constructed throughout from sheet metal, and

comprises a frame 25, sliding main lower and upper sashes 26, 21 (Figs. 1 and 4), as well as lower and upper sliding auxiliary or storm sashes 28, 29.

Sliding lower and upper screen sashes 30, 3| (Figs.

20-23) are also'provided, which are interchange- Flg-6 is a fragmentary detail sectional view able with said storm sashes 28 and 28. The

frame 25 has side portions or jambs 32, 33, a top horizontal connecting member or lintel 34, and a sill 35, all of which parts are fashioned to irregular channel cross sectional configuration from relatively light but stiff sheet metal stock. As shown in Fig. 4, the jambs 32, 33 are longitudinally recessed as at 36 and have box heads 3?, 38 at their inner and outer corners. Into the recesses 36 of the jambs 32, 33 extend the vertical edges of the sashes 26, 21.; and secured centrally within the recesses 36' by screws 39 are parting strips to and ti which, in practice, are fashioned to channel cross section from relatively stout non-corrosive metal (such as zinc), or from relatively stout sheet metal stock covered with lightgauge, non-corrosive sheet stock and positioned with their side flanges projecting inwardly of the sash opening in the frame 25 for service as tracks or guide rails for the sashes. The frame lintel 3 3 has an upward recess 32 (Fig. 3) in its bottom wall to receive the top edge of the upper sash 2'8; while the sill 35 is sloped downwardly and outwardly of the window for drainage purposes, and stepped as at 33 and M for a purpose lateron explained. The components of the frame 25' are preferably welded together along the regions of mutual contact, but may, if desired be otherwise secured one to another, as for example, by riveting.

The lower sash 26 is shown as being of the single light variety with opposite side, top and bottom rails Q5, Q6, ill and 98, fashioned, like the components of the frame 25, from sheet material,

and similarly united. The side rails 41, 38 (Fig. 4) and the bottom rail it of the sash 26 are of channel section, the side rails being left open, but the bottom rail being closed by an inset channel piece 549. The top rail d5 of the sash 26, on the other hand, is of boxed cross section, and closed at the top through lapping of a horizontal inwardly bent portion 52 (Fig. 3) of its inner wall 53 over upon a horizontal. forwardly bent portion 54 of its outer wall 55. As shown, the lapping portion 52 of, the inner wall 53 of the top rail 35 is extended beyond the outer wall 55 and then bent downward as at 56 into the form of a weathering flange. The sash 26 is sealed at the sides by weathering strips 51 of light non-corrosive spring metal, which strips, as shown in Fig. 4, are U-shaped in cross section to yieldingly embrace the inner t-rackflanges 58 of the parting strips 60 and M. As further shown in Fig. 4, the strips 5? are formed along one side with marginal retroversions which frictionally engage over the corresponding outer flanges of the side rails 41, 38, and which are held from displacement by one or more spot indentations such as shown at 59 in Fig. 4. From Fig. 3 it will be noted that the outer wall 69 of the bottom rail 46 is extended downwardly beyond the inner wall Bl so as to.

overlap the step 43 of the sill 35, and is sealed by a non-corrosive spring weathering strip 62 which is curved for camming action with the shoulder of the said step as the sash is lowered to closed position. As shown, one edge of the strip 62 is secured to the sash 26 between the outer wall 60 of the rail 46 and the corresponding flange 69 of the inset channel 49. The four rails of the sash 26 jointly provide an internal perimetric head 69 for abutment of the glass pane 65 which is sealed b putty or other plastic composition conventionally indicated at 66. To assist in retainin the glass 65, I have provided lugs or tabs "of relatively softsheet metal such as shown at Ma which are welded fast at their inner ends into the corners of the pane recess of the sash. Initially, these tabs 64a are flat, but upon placement of the pane 65, they are bent up as shown in Fig. 3 to overlap the glass.

The lower sash 26 is hung by counterbalancing suspension means whereof there is one at each side of the window. As instanced in Figs. 5-8, each such suspension means includes a flexible metallic strand element in the form of a cable 61 whereof one end is connected. at 68 to the upper end of a yoke 69 which houses a floating pulley m. From the yoke 69, the cable 61 extends upwardly to an associated pulley H which is journalled in a housing l2 fixedly set into the corresponding side rail of the sash 26 at the top. After passin around the pulley ll, the cable 61 extends downward to the floating pulley l0, then around the latter, and finally upward, being provided at its other end with a terminal eye l3 which is adapted to be engaged with an anchorage hook 55 secured within the recess 36 in the jamb 32 of the window frame 25. In the interval between the pulleys l9 and ll, the windings of I the cable S'l are embraced by a slip clip 16 which serves for a purpose later described. Each lower sash suspension means further includes a second metallic strand element in the form of a metallic tape ll whereof one end is connected at it to the lower end of the floating pulley yoke 89. From this point of attachment, the tape ll passes down to a pulley 59 which is journalled in a yoke as within the hollow of the side rail of the sash 26 at the bottom. After rounding the pulley E5, the tape 71? passes upward to an associate floating pulley SI carried by a yoke 82, then around said pulley and downward, the other end of said tape being secured at 93 to the top 'end of the pulley tain the cable El and the tape 1'! taut as the float- 8? of the suspension means respectively at opposite sides of the sash 26 are proportioned to counterbalance the weight of the sash and keep it from displacement in any position to which it may be moved. In order that the tension of the springs 9i may be regulated if found necessary for the proper functioning of the suspension means, the yoke of the lower pulley 19 is in each instance vertically shiftable by means of a headed screw 98 of-which the shank passes freely through an angle bracket 89 within the hollow of the bottom rail d6 of the sash 26 and threadedly engages into the bottom of said yoke, the head of said screwbeing accessible through an opening 90 in the closure strip of said sash rail. It is to be particularly noted that the two units of the sash suspension means are accommodated within the hollows of the side rails of the sash 26.

The upper sash 21 is shown as being of the multi-light type having upper and lower and side rails 9i, 92,93 and 94, as well as vertical muntins and a horizontal muntin 96 by which the sash area is subdivided for the several glass panes 91. The top and side rails 9|, 93, 94 of the upper sash 21 are of irregular channel configuration, the side rails being left open, but the top rail being closed by an insert channel piece 98 in amanner similar to the bottom rail of the lower sash. The bottom rail 92 is of regular channel section and reversed in position with relation to theother rails as will be seen from Fig. 3. Inserted into the hollow of the bottom rail 32 from above is a closure strip 06 which is likewise of upright channel section and has its side flange I extended inwardly as at IOI to overreach'the top of the corresponding side flange I02 of said rail, the extension being bent first downwardly and then upwardly into th form of a trough I03 to receive the pendant flange 66 of the upper rail'45 of the lower sash 26. Embracing the projection I03 of the upper sas'h 21 is a non-corrosive spring weathering strip I04 which,

has a free edge Portion I05 to frictionally engage the weathering flange 56 on the lower sash when the window is closed. As shown in Fig. 4, the upper sash 21 is sealed at the sides by U-section spring weathering strips I06 like those of the lower sash 26, which strips are affixed to the side rails of said upper sash and which frictionally engage the outer sash-guiding rail or track flanges I01 of the parting strips 40 and 4|. At the top, the upper sash is sealed through engagement of the edge of one of its upstanding side wall flanges with the free longitudinally curved edge of a spring weathering'strip I00 whereof the other longitudinal edge is suitably fixed within the recess 42 of the frame lintel 34. At the the guide flange 63, the sash 2s may'beshifted leftward to the position shown in Fig. 14 so that 1 the notches ms and m at the right hand side the bottom while still suspended by the cables 6-1 end regions of the meeting rails 43 and 32 of the two sashes 26 and 21, weather seals are maintained by bowed spring tongues H0 and III 10- cated within the hollows of the parting strips 40 and 4|, said springs being secured only at their upper ends by screws I I2 so that their lower ends are free to slide against the bottoms of said hollows. As a safe guard against the passage oi air or rain between th backs of the parting strips 40 and H andthe frame lambs 32 and 33, packing material of felt or the like is interposed as shown at H3 and I I4 inFigs. 4, 13 and 14.

In order that the-lower sash 26 may be readily displaced inwardly from the frame 25 for the purpose of draftless ventilation, or removed altogether for convenience of cleaning it, provisions are made as follows: As shown in Figs. 4 and 9 the top and bottom rails 46, 46 0f the lower sash 26 are notched at the right hand side of'the window as at H5 and H6 for registry, with the guide flange 56 of the partingstrip 4|, the inner edges of said notches being faced with non-corrosive metal as at H1 and H6 and adapted to bear against the flange edge. At the opposite or left hand side of the sash 26, the rails '46 and 46 are similarly notched as at I19, I20, but these notches are much deeper than the others so that their inner edges clear the edge 63 of the flange of the parting strip 40. Pivoted within the hollows of the top and bottom rails 45 and 43 of the lower sash 26 are keepers in the form of horizontal levers I2I ,(see'FiSS. 4, 5 and 11) having lateral manipulating projections I22 which extend outward through slots I23 in the inner walls of said bars, and which are formed with grasps IN. As shown inFig. 11, the free end of each lever "I is formed with a retroversion I25 for anchorage of a convolute facing I26 of non-corrosive metal. Normally the levers I2I occupy the position shown in Fig. 4 in which they are held through engagement of lug I21 on them with the bottom edges of the slots I23 and in which their faced ends 126 bear against the edge of the guide flange 53 of the parting strip 40 to keep the sash centralized in the frame .01 the window. By slightly lifting the levers I2I to'disengage their lugs I21 and then swinging them to the position shown in Fig. 13 so that their end clear when ventilation without draft is desired. At I3I, in Figs. 1, 16 and 17 are shown pivoted stops III which are normally out of the way within the hollows of the frame lambs 32, 33 as shown in dotted lines in Fig. 1'1, but which can be swung downwardly through slots I32 in said jambs to the full line position shown in Figs. 16 and 1'1 to determine an inclined position for the displaced sash 26 for increased ventilation.

At opposite ends of its top, the sash 26 is'provided with three-way angularnotches I36 into which the suspension cables 61 are adapted to be sprung as shown in Figs. 13 and 15 before the sash is entirely withdrawn from the window frame for, the purposes of cleaning. Thus, when the eye tabs 13 are disengaged from the anchorage hooks 15 and the cables are, released to the action of the spring take-ups of the balancing means, said cables will be arrested as shown in Fig. 15 when said hooks encounter the top oi the confines of the latter as shown in full lines runs of the cables 61 within the open channel hollows of the side rails 41 and 48 of the sash 26 so that they cannot become jammed between the side of the sash edges and the contiguous walls of the recesses 36 in the frame jambs 32 and 33. p

The sash balancing and suspension means and other fittings on the upper sash 21 are identical with those of the lower sash 26. Accordingly in order to preclude repetitive description, all corresponding elements of the upper sash balancing and suspension means and other fittings are identified by the same reference numerals previously employed, with addition in each instance,

however, of the letter a for readiness of distinc tion. The upper sash 21 is thus removable from the window frame in exactly the same manner as the lower one. Except for being fulcrumed intermediate their ends, the keepers I2Ia (Figs. 4 and 12) for the upper sash 21 are like those of the lower sash 26. In preparation for its removal, it is to be understood that the upper sash 21 is moved down, and the lower sash 26 raised so as to be out of the way. A buffer I36 (Figs. 1 and 3) of rubber or the like secured centrally of the under face of the frame lintel 34 serves as a;

shock absorbing limiting stop for the lower sash bottom rail 46 of the lower sash 26 stops short of the top of the sill 35 to permit drainage of any leak water from the trap I39 formed by the step 35 in said sill immediately behind said bottom rail.

The provisions made for application of the storm sashes Z8, 29 or the screen sashes 30, 3| to the window include a pair of supplemental jamb members I40 of irregular channel cross section. One of these members M is separately illustrated in Fig. 19, and, as shown, is fashioned from sheet metal like the other parts of the window. The narrow channel portions Itll of the members Hill are dimensioned to engage the beads 38 of the frame jambs 32, 33 with a tight friction fit. The side flanges of each supplemental jamb member I46 are offset outwardly as at I52 and I63 and then retroverted as at I65 and I55 with incidental formation of longitudinal edgeslots ldliylfll, the upper and lower halves respectively of the retroverted portions Hit and I35 being cut away as at I58 and M9 and the cut ends rounded outwardly of the slots I55 and IN as at I50 and II. The rails I52, I53, I56, and I55 of the lower storm sash (see Figs. 3 and 4) are all of Z cross section and welded together, with resultant formation of a depression into which the glass pane I55 is set and sealed with packing I5'I of felt or the like. of the side rails I54, I55 of the lower sash 28 l are faced all around with non-corrosive sheet metal as at I59, I60 and engage with a snug fit into the grooves N5 of the supplemental jamb members MI]. The flanges I6I and I62 of the top and bottom rails I52 and I53 of the sash 28 are similarly faced as at I63 and ltd, the facing I63 being extended outwardly at one side and bent downwardly as at I65,.while the facing I66 is so shaped at the bottom as to provide a retaining channel I65 for resilient tubular weathering I6? whereof the projecting portion seals against the top of the window sill 35 as shown in Fig. 3. It will be noted that the facings I59, IIiIl, I63 and I65 are all extended inwardly of the sash area to assist in the retainment-of the glass I55, and that they are removably held assembled with the sash frames by spot indentations as instanced at 56 in Fig. 3. Accordingly, the facings I59, I65,

I63 and I64 can be readily removed and restored in the event that glass replacement is necessary.

The upper storm sash 29 is constructed along generally similar lines, its top I III and its side rails I'II, IIZ being of Z-section and faced with non-corrosive sheet metal as at I13, I'M and I15, and the faced flanges of said side rails extending with a snug fit into the guide grooves I46 of the supplemental jamb members I46 as shown in Fig. 4. The top facing I13 of the upper sash 29 provides a retaining channel I16 (Fig. 3) for resilient tubular weathering I'I'I whereof the protruding edge'seals against the bottom face 'of the frame lintel 34. The bottom rail IIB of the upper storm sash 29' is cross sectionally shaped like the letter w, providing two channels, one for reception of the lower edge of the glass pane I79 and the other for reception of the dependent flange portions I65 of the facing I63 on the top rail I52 of the lower storm sash. 28. As shown in Fig. 3, the facing I80 on the bottom rail The flanges I I18 of the ,sash 29 extends around the upstanding inner flange I8I of said rail and has a free spring portion I 82 which bears weathertight against the pendant flange portion I65 of the facing I63 on the lower sash 28. The storm sashes 28, 29 are secured in position by retractable slide latches I33, I85 which engage openings I85 and I86 in the supplemental jamb members I 30. As instanced in Fig. 18, the supple mental jamb members I56 are provided with additional bolt apertures I87, I88 at levels respectively above and below the apertures I85, I86. Thus when ventilation is desired, the lower storm sash 28 may be secured in the raised position as indicated in dot and dash lines in Fig. 18, or/and the upper sash secured in a lowered position.

Due to cutting away of the side flanges of the supplemental jamb members I tll at M8 and M9, it will be apparent that the sashes 28 and 25 can be removed upward and downward respectively out of engagement with the guide grooves M6 and MI in said members, this action being facilitated by the rounding of said flanges at I56 and I5I.

Upon removal of the storm sashes 28 and 29, the screen sashes 36 and SI can be substituted in their place as shown in Figs. 20-23. The rails I66 of the lower screen 31'! are suitably configured cross sectionally to provide, in conjunction with their facings IQI of non-corrosive metal, a perimetric recess for a rectangular wedge clamp of the lower screen 36 are extended inwardly of the sash areain this instance, to overlap the wire mesh clamping frame I92, and are moreover held in place by spot indentations as exemplified at '59 in Figs. 22 and 23 so as to be readily removable and replaceable when the mesh requires renewing. The upper screen 3| is substantially identical with the lower screen 30 as will be readily seen from the drawings, and therefore need not be separately described.

; Latch bolts I95, I96 on the screens 35 and 3I are provided for engaging the same holes in the supplemental jamb members I56 as those used for the bolts I83 and I84 on the storm sashes 2B and 29, to hold said screens in position, as clearly shown in Figs. 21-23.

Fig. 24 shows a modification in which the side edge flanges of the lower main sash 26 of the window are rounded inwardly toward each other as at I9! to preclude the possibility of their becoming caught between the side edges of the meeting rail sealing tongues III! and the inner faces of the guide flanges 58 and Ill? on the parting strip 46 and AI. This modified construction may of course be embodied in the upper main sash ZI also.

Having thus described my invention, I claim:

1. A window structure comprising a frame with sash guide rails at the inner sides of its jambs;

a sliding sash recessed at its opposite side edges to engage over the respective guide rails, the recess at one side edge of the sash being deeper than the recess at the opposite side edge so that the sash can be shifted laterally and thereafter maneuvered for removal from within the frame; and retractable elements within hollows of the sash frame normally closing a portion of the bears on the edge of the guide rail at that side of the frame.

2. A window structure according to claim 1 r in which the retractable elements have the form for convenience of manipulation from the inner side of the window.

3. A window structure according to claim 1, in which each of the retractable elements is in A the form of a lever whereof one end bears against the guiderail at the corresponding side of the 1 window frame and whereofthe other end -ex-.

tends outward through an aperture in the sash frame for convenience of manipulation from the inner side of the window: and wherein the bearing end of each such lever has a separately-attached wear facing.

4. A window structure comprising a frame; lower and upper sashes slidably guided within the frame; releasable means allowing the lower sash to be displaced inwardly from its normal plane within the frame for the purposes of draftless ventilation; counterbalancing means and strand elements whereby the sash is suspended; and brackets on the inner face of the window frame at the sill for supporting the sash at its lower corners when the latter is displaced as aforesaid with the side rails of the sash bearing against the inner faces of the frame lambs.

5. Awindow structure according to claim 4, further comprising cooperative stop means to 5 hold the displaced sash a tilted-positionin opposition to the pull of the counterbalancing means when increased draftless ventilation is desired."

said stop means having the form of pivoted elements which are swingable into openings in the rear faces of the lambs of the window frame so asto be normally out of the way, and when so swung form flush closures for such openings.

"6. A window structure comprising a main frame with spaced guide tracks at the inner sides of the lambs; sliding upper and lower sashes with projecting side flanges; and U section metallic guide strips secured to the sash along the opposite side edges and respectively engaging over the tracks, said strips being the sole means where- "by the sashes are held to the tracks, and each having a retroversion on one of its legs to embrace the edge of one of the projecting side flanges aforesaid at the corresponding side of the sash.

7. A window structure according to claim 6 wherein each such strip is secured by indentations into apertures at intervals along the corresponding sash flanges.

8. A window structure according to claim 6, wherein the hollows of the U strips are of such depth as to permit lateral shifting of the sash and subsequent manipulation of the same for convenience of their removal from within the main frame; and wherein retractable. keepers on the sashes normally close portions of the strip hollows and engage the edges of the track 

